Bunch-building and bobbin-forming attachment for spinning machines



March 24, 1931. J. L. LYLE 1,797,353

BUNCH BUILDING AND BOBBIN FORMTNG ATTACHMENT FOR SPINNING MACHINES'Filed May 31', 1928 2 Sheets-Sheet 1 J. L. LYLE March 24, 1931.

BUNCH BUILDING AND BOBBIN FORMING ATTACHMENT FOR SPINNING MACHINES 2Sheets-Sheet 2 Filed May 31, 1928 'Patented Mar. 24, 1931 i Jes ie, LEEtrial r Permian Has ett fin sh-empties Ann B BBiN-EQRME F Applicationfiled, May 31,

This invention-relates to, a combinedbunch builder and bobbin former foruse withspinning machines, one of the objects of the vention being to.provide simple. and elfici n -mechanism of: this character which will'regulate-the. quantity'ofi yarn left on quills. from automatic looms,to. properly shape the bob.- bins. to. be used in automatic looms, andto soswind the yarn on a quill as-to. holdyit more 1-0 securely at thenose, thereby to preventf it from slufling off;

A further objectlistoprovide a mechanism for positively and efieotivelybuilding asatisfactory bunch'oi yarn at the base of the quill so thatmore yarn will be located at "this point than. is customary in presentday spinning practice.

1 Another ob'ect' is to. provide a mechanism which can be appliedreadily to. any spinning frame used in making fillingsfor automaticlooms, said mechanism adapted to positively control theilength andtdepth of thebunch. A still further'obj act is to provide" mechanismhaving anew) and-novel arrangement of adjustments whereby the. action of"the several working parts can be regulated to meet the conditions-underwhich the mecha.- n-ism isused. p 7

. With the foregoingand other objects inview which will appear as,the-description proceeds the invention resides'in the combination andarrangement of parts'andin the details v of construction hereinafter"described and claimed it being understood that changes in the precise iembodiment of the invention may be made within thesco.pe of what isclaimed Without departing "from the spirit of the invention. I v In theaccompanying drawings-the preferred form of the invention has beenshown. In said'drawings, f. Figure 1' is afront ele :ationof thecombinedbunch builder and bobbin former, showing therelative positions thereof,the starting 19' sition of the former being indicated by broken lines. fg I V Figure 2 isali elevation ofone side of the bunch builder, thecams, used in connection therewith being indicated by. broken lines,

the builder chain being removed.

en ighten: me

192a Serial no, 281,868; V

F gure 3' s ancl vatione the eplesite s de f -"the bunehbuilden I 4;. isa Plan; thei'e t F guiie 5 is. airlan View of the-bobbin ormer; k Figure6 is an elevation of abobbin as made the apparatus ,c'enstittting t e prseetiy nti t. a

Rete ringe th fig res by: cha acte off vetera e ldesigea eeth 2,1 der ef bun h hni'ideroneend at 1th, is sen-n ed o the ba e ft spi iniegitrame(12 st h w) y means of; he main bea ing axle. 2, located near'one end ofthe. builder arm. Thu he aidibi ilder atmtakes form f a e r havingalens-arm and-a, short arm, a t ere being an extensi n. pivetallyconectedj to the. sh rt and carry g a coune bel ne tadinstablrmounted-and adapted to, be h ld aga n t sliding? by a a;

from the short endiof the bu ld r-arm, this 7;;

crew consti uti g support for the extcn sion arm 3a s shown particularlyin Fignre'fi. ne ide -tthe builderarm 1; i formed i h longitudinal grove 8' constitutin wa O -r taining and. guiding a slide '9 39 along onelong tudin l-edge ofiwhich are anrangecl' raekteethlOfiOlllt end of. theslide can be previdedwithanadjnstable stop. screw ll adapted to, i itthe movement of the s ide 91-t0- dthe ax e 2-. APu l y 12; is as meunt'd, on the builder arm linear thatfend t i ree r m te frem he ais e 2:While, ane her Pull y 13 i cu ted onth sl delt: A lon i tud nal Shaft itis jcurna ed bearings 15 p vi dther foron the low r port n f he sobuilder a 1 and secured to this shafit is a o m which meshes c nstant ywith som of th y r k eeth 10, the lower por ien e the builderfarm 1being cut away as at .7 t9 p i thisiengagernent Qfthe worm with the teth. A brake screw 8. extends in c Que of the bearings 15. and; may heprovided with any suitable friction means not shewn, .fior en gagementwith the shat-t 14 so. as. to. retardits rotation.

A ratchet wheel 19 is securedto one end of the shaft 14 and pivotallymountedon this shaft adjacent the ratchet wheel is a lever 20 having alaterally extending lug 21 adapted to work within a yoke 22 extendinglaterally from one end of the builder'arm 1.

, One arm of this yoke has a stop screw 23 mounted therein and this stopscrew cooperates with the other arm of the yoke for limiting theoscillation of the lever. A dog 24 is carried by one end of the leverand engages the periphery of the ratch wheel 19. Thus when lever 20 isswung in one direction the dog will act to impart a slight rotation tothe ratchet wheel 19 whereas, when lever 20 is swung in the oppositedirection, the dog will slip over the teeth-of the ratchet wheel. Atake-up rod 25 is pivotally connected to lever 20, there being a seriesof apertures 26 any one of which is designed to receive the pivot pin27. An adjustable connection between the takeup rod and lever 20 isprovided in the manner just described. The upper portion of the take-uprod is screw threaded as shown at 28 for engagement by nuts 29, this rodbeing mounted in a bracket 30 adapted to be secured to a stationaryportion of a spinning frame (not shown).

Pivotally mountedon the slide 9 between the pulley 13 and the axle 2 isatrip lever 31 having an offset end portion 32 carrying a roller 33. Theother end portion of this lever hasan arm 34 pivotally connected theretoat larly spaced points shown at 40 inFigure 2.,

This small cam ispreferably formed of the hub portion of the main cam 41which, as shown in Figure 2, is formed with three peripheral depressionsone of which is round ed, .as indicated at 42 while the others areangular as shown at 43 and 44. The bottoms of all of these depressionsare the samedistance, 'radially,-from the axis ofrotation'of the cam. r

' Arranged at'one side of the builder arm 1 is a block 45 pivotallymounted, as shown at 46 and carrying a cam roller 47 adapted nor- 'mallyto bear against the periphery of the cam 41. An adjusting screw 48carried by a bracket 49 on the builder arm 1 engages one end of thepivoted block 45 and by means thereof the roller 47 can be adjustedrelative to the periphery of the cam 41,

arm. close to the lever 20.

Abuilder chain 50 is anchored at one end to thebuilder arm 1, it beingpreferably connected to a block 51 at one side of the builder This chainis looped about the pulley 13 and extends under pulley 12 and thenceupwardly over a guide pulley 52 to the bobbin former shown in Figure 1.This bobbin former includes the usual rocker mechanism a portion ofwhich has been shown at 53. A lever 54 is pivotally mounted, at one,end, on the rocker mechanism as shown at 55 and has anoutstanding lug 56to which one end of the chain 50 is adjustably connected by means of astem 57 projecting from the end of the chain, and through the lug 56,this stem being held in place by a nut 58 or thelike. The chain bearsconstantly on the arcuate periphery 59 of the rocker mechanism. Lever 54hasa recess 60 in its lower edge adjacent the pivot 55 and pivotallyconnected to the lever adjacent the recess is an elongated arcuate shoe61 adapted to be adjusted angularly relative to the lever by means of aclamping screw 62 extending through a slot 63 in the shoe. The arcuatelower edge of the shoe is adapted to ride-on a small roller 64 extendingfrom a fixed portion of the frame of themachine.

When the machine is operating the lever arm or extension 34 is incontact with the stud 38 and the roller 33 is in rolling contact withthe small cam 39, as shown for example in Figure. 2. The parts are soproportioned that. when the roller 33 is thus located, the roller 47will be clear of the cam 41. As the cam'39 rotates it imparts anoscillating mo-' tion to the arm 1 of the builder, this builder armswinging about the axis of the axle 2,

such movement transmitting a very' short stroke to the ring rail (notshown) of thespinning frame and at the same time causing the dog 24 toimpart an intermittent rotation in a clockwise direction to the ratchetwheel 19 and the shaft 14. This short stroke action set up by the cam 39continues long enough tocau'se the desired small bunch of yarn tobeformed on'the base of the quill as shown by full lines at a in Figure6 and as hereinafter more fully explained. The rotation of the worm 16with the shaft 14 will cause'the slide'9 to feed longitudinally,carrying the lever 31 with it until'finally the free end of theextension arm 34 will slip from under the stud 38 and allow the roller33 to dropout of contact with the cam 39 7 against which it has beenheld by the weight 4 and the pull of the chain 50. Following this actionthe roller 47 comes against the periphery of the cam 41 so that, insteadof theshort strokeset upby thecooperation of gradually paid out. As thischain is thus paid out the ring rail (not shown) will gradually riseuntil the bobbins are filled tothe desired height.

' By providing a bobbin former such as shown for example in Figure 1 thefull stroke of the bunch builder is prevented from being transferred tothe ring rail while the lower portion of the bobbin is being wound.During the first part of the operation of the mechanism the chain 50,being drawn back or shortened, the former will be located with its partspositioned as shown by broken lines in V Figure 1. At this time theroller 64 is within therecess 60 and the lever 54 with its shoe 61 isswung downwardly relative to the arcuate portion of the rockermechanism. Consequently the chain 50 is permitted to move farther to theright, in Figure 1, than would otherwise be possible, this being due tothe changed position of the lug 56 which is swung to the ri ht as shownby broken lines in Figure 1. 6n each stroke of the bunch builder thelever 54 is moved to the left with the rocker mechanism and, during thismovement, will come against the roller 64 and be swung outwardly awayfrom the axis of rotation of the rocker mechanism. This abrupt swingingor lifting action continues on each stroke of the mechanism until thelever has been brought to its extreme position to the left as shown byfull lines in Figure 1. During the latter portion of this movement theroller 64 will be engaged by the arcuate bottom surface of the 'shoe 61-so' that the lever will not swing the rocker mechanism. The action ofthe rocker mechanism gradually shortens the stroke of the ring railduring the first strokes imparted bythe main cam 41 to the bunch builderand each stroke is shortened more than the next preceding stroke as themotion of the lever 54 results in the roller 64 being engaged more andmore by the curved edge of the shoe 61 after gradually passing off ofthe end wall of recess 60. Thus the bobbin is-caused to fill out atthebottom as shown at a rather than to have a. taper as indicated by dottedlines at a in Figure 6, this latter arrangement being the one usuallyproduced by mechanisms now in use. The curvature of the active edge ofthe shoe 61 is such as to throw a shorter radius of curvature in contactwith the roller 64 as able member to'reduce the loop and pay out44heretofore mentioned. The lllilBIIl'LOShPOIf? tionsv of all of these.depressions are equidistant front thet'axis of rotation of the cam".Then the depression'42 goesover the roller 47, said roller: will moveinwardly the full depth of the depression, as the depressions43 and 44are angularathe roller 47 cannot move thereintothe full distances.Insteadtherolle-r will bridge the innermost portions: of the depressionsas they pass thereover. Conse-o quently two of'the upward movements ofthe builder-arm 1 of thebunch builder will befor the full depth of thedepression 42 while the other upwardmovements will stop before the hilldepth is reached.

' By providing-the regularly spaced points 40 011 the cam .39 andutilizing'preferably nine of these points, (although this number is notessential): a more rapid crossing'ofthe yarn wound on the quill resultsduring the building of the bunch and in consequence thereof, the bunchwill adhere moresecurely' to the quill than would otherwise be possible.I

F or thepurposeof effecting an'adjustment betwen' the trip-lever 31andthe arm 34, an

adjusting sore-W65 may be extended into the lever 31 so as to"constitute anadjustable stop for thearm 34. I1

What is claimedis: 1. Meehanismof the class described including abuilder arm mou-ntedlfor oscillation, a member movable thereon, abuilder chain con- 1 nected tothebuilderarm, cooperating means on thebuilderarinand member for forming a loop in'the chain, means foroscillatingthe builder arm, means actuated by the oscillation of thebuilder armfor shifting the movthe chain, a'bobbin former rockermechanism, a connection between said mechanism and the chain,and meansfor automatically v shifting said connection relative to the rockermechanism while-the chain is being paidout,

thereby to retard the action of the rocker mechanism; I

2.'Mechan1sm' of the class described 111- eluding a bunch builder armmounted for oscillation, a member movably'mounted thereon, a builderchain{coi1nected to the builder arm, means carr ed by the memberv andbuild-- in arm for maintaining a loop in the chain, separate cams, meansonthe movablemem her for engagement'by one of the cams to osciilate thebuilder arm, means. actuated by ing the I movable member to 1 reduce theloop lease the cam engaging means from active I the oscillation of thebuilder arm for shiftcooperationwith its cam, means carried'by thebuilder arm for engagement and actuation by the other cam following saidrelease, thereby to oscillate the builder arm at a dif- 5 ferent speed,a bobbin former rocker mechanism, a shiftable connection between saidmechanism and the chain, and means for antomatically advancingsaidconnection While the chainris being paid out, thereby to retard themovement of the former mechanism.

' '3. Mechanism of the class described ineluding a bunchvbuilder armmounted for oscillation, a member movably mounted thereon, a builderchain connected to the builder awn-means carried by the member and builder arm for maintaining a loop in the chain, separate cams, means. on themovable member for engagement by one of the cams to oscillate thebuilder arm, means actuated by the oscillation of the builder arm forshifting the movable member to reduce the loop in the chain and pay outthe chain and to release the cam engaging means from active cooperationwith its cam, means carried by thebuilder arm for engagement andactuation by the other cam following said release, thereby to oscillatethe builder arm at a difi'erent speed, a bobbin former rocker mechanism,a shiftable connection between said mechanism and the chain, and meansactuated by the movement of-the rocker mechanism as the chain is paidout for variably advancing the vconnectiorr between said mechanismandrthe chain thereby to variably retard the movement of the rockermechanism While the chain is being paid out. 7 '4. Mechanism of theclass described including. a bunch builder arm mounted for os cillation,a member movably'mounted there- 40 on,'a builder chain connected to thebuilder arm, means carried by the member and builder arm for maintaininga loop in the chain, separate cams, means on the movable memher forengagement by one of the cams to oscillate the builder arm, meansactuated by the oscillation of the builder arm for shifting the movablemember to reduce the loop in the chain and pay out the chain and torelease the cam engaging means from active cooperation 5 With its cam,means carried by the builder arm for engagement and actuation by theother cam following said release, thereby to oscillate the builder armat a different speed, a bobbin former rocker mechanism, a leverfulcrumed thereon, an arm extending from the lever engaging, the chain,an adjustable shoe carried by the lever, and fixed means in I the pathof the lever and shoe for advancing the lever arm relative to the rockermecha- I31) nism at variable speeds While the chain is be ing paid out,thereby to variably retard the movement of the rocker mechanism. 7

In testimony that I claim the foregoing as my own, I havehereto aflixedmy signature. 7 JESSIE LEE LYLE.

